Motion-controlling mechanism



v 1,565,835 .1. w. WATSON Y A MOTION CONTROLLING MECHANISM Dem 15, 1.925?.

yFiled April 19, 1920 l 2 sheets-sheet 2 warn/Ess" uvvslv'roR Patented Dec. 15, 1925. i

UNITED S'TATES'PATENT orifice.

JOHN WARREN WATSON, or WAYNE, rnNNsYLvANIA.

MOTION -CON TROLLIN G MECHANISM;

Application inea April 19, i920. senin No. 374,806.

T 0 -all whom #may concern.:

o Beit known that I, JoiiN WARREN lliii'r- SoN, :i citizen of the United States, `:ind a. resident of Wiryne, in the county et' Delai- `were sind State oi' .lreni'isylviinie, liu-ve iiii'ented certain new :ind useful. Ii'iiproie whichV the following is ii speeilieiition,reference being had to the zieeoiiipiinying drawL ings. f Q i lhisginvention reliitesto ii novel' combi-` nation for controlling', regulating or checking'ifelutive nioi-'i-iinentin one direction beu tween any. two elen'ients, iiid iii-particular relates to tll'iit classo'f inecliinisni intended to check 'the too Irapid separation" between the sprung ,und nnsprunpr portions of zi vehicle und, in piirtieiliir,-zrniotor vehicle. f A pzirtieu'li'ir object 'of my inifention 'is to provide n" sj'iring-coiiti'olled friet-ion to iinike it possibletoti'iiisniit the 'power oli the niiiuyspri'ng vin :i direct iiniiiner to one' of the enacting' friction iiiei'nbers. In

spriiig-controllol 'friction inechiinisnis of the drinn und friction biiiid type, it has Y heretofore been eiistonigiry to use il .single one of the meeting'friction iiienibers, iii the l drinn und when the spring is positioned witliintlie drum', to "transmit the power otv .of en' erin, or equivalent, .ing out and :ir'ouiidtliffedgeolf tlieilrjuni. Such ii construction es the zibove vnecessiirilfy iiivkivrd :ind Acostly,ii'ndfit is, therethis spi-ing to the frictionfliziiid 'by ineens fore, the object ottliis inventionto proiiide y :il structure such :is will permit 'the power of the ,spring to be Ytinnsinitted directly to' present' instence ii friction'bnnd, Without going;` entendi-around the edge of the drinn.' \To `accomplish this, 1n the einboi'lnnent shown, I iisetzn 'split drinn, or, retliir,` i. `double driiin. This. construction `and nrrangement of parts, asis clearly shown by .the aeeoinpenyingA drawings,- obvietes the necessity of transmitting the; power of the spring, tothe friction band, by 'eiiyindireetY orftortuous .ways ,undinakes it possible to transmit this powerin, e directy wey.

y,This direct. application, of vthe power of the spring,.as -isinadeipossibld inthe present embodiment/,by alsplitior. double drum arrangement-, inirks a' decided improvement in-,tlieiiliitiias `many parts ere thereby ren-v deredfilnneces'sary sind :i ini-ich more simple,-

fool-prooi: .und .lasting device is produced.` wie ri lul 2 .,1 :5'- i" IAA. Fig. l. `.views corresponding to Figs. l :nid 2, re*- i'u'ctiire,l extend-y f one relative to the other,

` As,by this improvement :ill forces and resistance to those liorces-l lie in n single pla-ne, all twistingstrains :ind binding teii- 'ileiicies irre? at once eliminated, smoother notion isobtziiiied, and any .weer on the parts is thereby reduced to ii niiniiiiuin.

Various coiiibinations of elements sind dill'e'rent ineens vcoiild be rreadily employed' to obtain the results secured by the inecliiilxnisni disclosedivithout departing from the spirit and scope of this invention, the illusltrutions herewith beingmerely by Wiiy ofl exemple. y

' One I embodiment of this `invention is shown by thefirceoinpztnying drawings in which Fig. l is e, sectional View on line BB Fig. 2. Fig. 2 is :i sectional view online Figs. El {ind/l are fragments-ry speetively, showing :i modification tof the extent`rl of adding, il.l such addition is`` required, zrbiisliing,r or liner between the bend ll. and. 4.the drums l und 5. '.llie emploi*- nient of this bushing or liner may be found mi i i i `advantageous for the purpose ci' n iiiiiitain- 'ingr` bond 115er some portion o'l" spiing, ont oi' riibbifng Contact with'tlie drriis, or

-suclik employment may `'be found adventscheck, regulate oi; control. These elements are illustrated :nei-ely diagraininetically for the purpose ofindiceting that this invention may be applied and'utilized in connection with various combinations of elements which move, one relatively to the other, and Whose 4movement itis desiredk to eli'ectively control.

Attacliedto eleinent X by any suitable ineens, such as, for example, by cepscreiv 1, and kept froinlturiiing with. relation to elements X by nieznis ein stud Q, is :i mein'- ber 3 of irregular form which acts to een ,it is desired tokmi port drums 4 and 5 and spring 6. By any suitable means, such as, for example, )y

Squared portions being formed on member 3, and corresponding squared openings being formed in the sides ot' d-runi members 4 and 5, these drum members are held against rotation with relation to member il and hence also with relation to elen'ient X. Rotably mounted on the outer peripheries of drums 4 and 5 is a iriction member 7. Attached to this friction member 7, as, for example, by means otl rivets 8, is a member 9 which serves as a connection between spring 6 and member 7 l" lso attached to member 7, as for example by means ol' rivets 8, is a `ilexihle member or strap 1l) which is adapted for attachment also to element Y. hastened around spring (5 in any suitable manner, such as, for example, by having its ends so formed as to hook into each other, is a retainingband 11 which has for its object to facilitate the assemblyot spring f3 within the drums t and 5, and which also serves to maintain spring 6 within pre-determined limits, and hence o'ut of contact with lthe inner peripheries of drums 4 and 5, regardless ot' the extent to which spring (3 may be wound up or unwound. The inner convolution of spring,r 6 is heldin irel relation with the barrel portion of member 3 by any suitable nieans, such as for example, by liooking into a slot suitable formed in such latter member. The outer end of spring' 6 is also provided with hooks 12-12 which extend beyond band 11 and serve to connect the spring with member 9. Membersl-'l and 15 are, by spot welding or -by other suitable means, held fast to members 4 and 5, respectively. These members llt and 15, in

conjunction with cover member 16,'act to" house' the entire mechanism and also act to maintain a pre-determined separation, or space, between drum members 4 and. ut 17 and lock washer 18 serve to hold and maintain the parts in position.

Referring to Figs. 3 and 4, the bushing:r or liner 19, two purposes for which have already been outlined, may be made in the form of a complete ring or a split ring, or may be made in the form of only some portion ot' a ring, dependingT upon4 whether it is `desired or necessary to maintain all of band 11 or only some portion ottlie band` away from rubbingr contact with the inner peripheries of drums 4 and 5.

Referring to Figs. 5 and 6, it will be seen that band 11 has been made to extend beyond each side of spring,T G and has been cut out to permit the band to be crimped over side members 20 and 21. Thus crimping the band over these side members provides a means for housing grease or other lubricant as above outlined.

As attached in the present instance to elements X and Y, it-will be readilyunderfor the transmission of' stood, by. those skilled in the art, that as elements X and Y are caused to approach each other, spring' 6 will immediately act to rotate friction member 7 around the drums 4 and 5 and thus keep taut the strap 10, and as elements K and Y are caused to separate, trictional resistance to such separation is set up between member 7 and drums 4 and 5 because of the facts that the movement of member 7 around the drums is resisted at one end by the power of spring- 6. The power of spring 6 may be variously adjusted by looseningV the out member 3 a sutcient distance to disengage the squared portions on member ."3 from the squared holes in members l and 5, turning member 3 either lforward or backward one or more revolutions, and then again registering member 3 back in the squared holesI in the drum members 4 and In order to provide adjustments finer than are given by complete revolutions ot' members 3, a plurality of slots may be suitably formed on. the barrel portion of member 3. In this Way the neness of adjustment is limited only by the number of such slots.

I have illustrated andl described a preferred form of construction for carrying into effect my invention, which primarily consists in making it possible to transmit the power of the main spring, in a s ring-controlled friction mechanism, in. a direct nontortuoiis manner to one of two cci-acting friction members. While this form oi construction illustrates the use of a double drum for carrying this invention into eii'ect, and

while this double drum arrangement isv illustrated in ,connection with only one type of spring-controlled friction mechanism, it will nevertheless be understood that variations and modifications may be employe-,l Without departing from the s irit and scope of the invention, which broac ly discloses, in mechanism of the nature herewith, means power through a supporting member to a member supported by` said member for rotating said supported member with relation to said supporting member, and which also broadly iiiscloscs, by separating or dvidingthe friction sur face portion of at least one of two radially mounted and relatively rotatable friction- A ally opposed members, means for the transmission of lower through and beyond the friction sur ace portion of one of said meinbers to relatively rotate said members without setting` up twisting or cramping,r tendencies asa result of theapplication ot' the power and without the necessity ot supporting means other than the friction sui'- faces lthemselves. In connection with spring-controlled friction ymecha'nisins oi" the drum and band type, or in connection with spring-controlled friction mechanisms ot types employing members which are the nut 17, pullingr v equivalent of a drum and band, it is believed thaty this idea of providing a direct, nontortiious connection for the transmission of` ower to one of the izo-acting friction memers, and the many advantages resulting from such, provision, is entirely new, end I, therefore, desire to avail myself of such `variations and modifications as come within ,y y the scope of the appended claims.

Having .thus described my invention, what I claim and desire `to protect by Letters Patent of the United States is:

1. In mechanismfor retarding motion in i one direction between two relatively mov- :able elements, a plurality of coaxially arrangedr drums adapted to bc secured to one of said elements, a friction member in contact with said drums and adapted to be secured to saidjother' element, and a spi-'ing so associated with one. of said drums and said friction member as to tend to relatively lmove them in one direction.

'2. In mechanism ffor retarding;` motion in one direction between two relatively movable elements, a plurality of coaxialiy an one direction between two'relativcly movabler elements, two drums adapted to be secured 'to one `of said elements, a friction member in contactvwith said drums and adapted to be secured to said other clriiirm', a spring so arranged as to transmit its poifver between said drums to said friction member, 4and means to maintain saidspringf within. pre-determined limits regardless oi' vthe extent to which said spi-ingr may be' wound Vup or iinwoiinii. I i n '7, In mechanism for rctarding motion in one direction between two relatively movable elements, two coaxially arranged d ruins adapted to be secured to one of'said elcments, a friction member in Contact with saididriiins and adapted to be secured to said other element, a-spring so associated with said drums and said friction member as to tend to relatively move them in one direction, and means to maintain the outer end of said springn away from contact with *said drums. f I i 8. 'In mechanisnrfor retarding motion in one direction between two yrelatively morranged drums vadapted to be secured 'to one, able elements, two ldrum'sfa support for said of said elements, a friction memberin contact'with said drains and adapted to be secii'red to said other element, and a spring so associated with one of said drnms and said friction member as to resist their relative movemcntin one direction.

3. In mechanism for rrtarding motion in von'e direction between tir-o relatively nior- Vable elements, .a plurality,otcoaxially ari ranged .drums adapted tobc secured to one drums and adapted to be *secured to saidoffsaid elements, aA friction member in contacty With saidy drums.andeulaptcd to be secured to said other clement, and springy soassociated with one of said drains and saidifriction member asto tend to relatively move them n one direction and resist their relative movement in another "direcf tion.. i i I 4. In mechanism for retardinpT motion in other element, a spring having one of its ends in fixed relation with one of said drums,- and-means extending between two ot said drums and connecting saitl spriiigf'to said frictionmember. y y I l 5. In mechanism for retarding mot-ionin one direction between two' relatively mov-` able elements, two drums adapted be secured to oneV of said element-s, a friction Ymember in contact fwith said drumsl andl adapted to be secured to said other element,

liti

and a s ring so arranged asto transmit its power ctween said drums to said friction fiber. y y u i. In mechanism for retarding motionin tween said drums, from said #su pport to said friction member.

9. JIn mechanism for rotar-ding motion beh tween ,relatively 'movable elements in one direction, two drums carried by one oi said Yelemeiits, a'friction member in contact with said drumszand adapted to be secured to said other element, and a )springso associ-ated with said'drums and said friction member yasto increasethearea oi contact between said drums and said friction member as the elements approach cach other.

l0. Inmechanism for retarding motion f between relatively movable elements inone fdirfctiomtwo drums carried"byone of said element a friction member in contact' with is and adapted to be secured to said other cleinent, a'` spring so y associated Wi th said drums and said friction member as to increase the-area` of contact between saidv n druinsand said friction inen'iberas the ele` mentsfapproacheach other, and'means to maintain said spring .out `of rubbing com tact with said drms.

between' relatively movableeleinents in one direction, `two drums` carriedqby one of-said l1. In mechanism for retaiidingmotion elements, a friction `meni'berfin contact with. 'said drums and adapted to besecured tosaid other element, a springkso associated v'with said drums and ,said-frictionmembeiyas to increasel the area' of contact betweeny said drums Aand said,fi'iction Amember as the elevlt ments approach each other, and means to maintain one end of said spring' out of rubbing Contact with said drums.

l2. In mechanism for retardiiigj niotioii between relatively movable. elements in one direction. two drums carried by onil ol said elements. a friction member iii contact with said `di'uiiis and adapted to bel secured to said other elementi. and :i spring` so connect ing" said drums to said friction member as to increase the area of contact, between said drums and said friction member the ele; ments approach each ottici-said connection passing' between said drums.

lil. in .mechanism 'l'or retardingr motion beiiien relatively movable elements in oni` direction,4 tivo drums carried b v one of said elements, airieytiion nieinbei iii Contact with .said drains aud-adapted lobe secured to said other element, aspx-ing' so 1connecting said drums to said friction nieniber :is to increase the area ol contact between said drums and said friction member :is-'theelements approach eac-li other. said eoiin'eeiioii passingr between said drums,v and means to n'iaiiitaiii said spring within pre-determined liinits regardless of the extentJ to which it may he wound Aup or unwoiind:

14. In' mechanism for retin-ding motion between relatively movableeleinents in one direction, two drums carried by one ot said elements, a friction member in Contact with said drums and adapted to be secured to .said other element, a spring so connecting said d ruins to said friction member as to increase the area of Contact between said (li-unis and said friction member as the elements approach each other, said connection passing between. said drums, and means to maintain one end of said spring out of rubbing contact with said drums.

15.In mechanism for retarding motion between two relatively movable elements` two drums supportedby, and'iii fixed rela tion with, one of said elements, a friction shoe iii the form of a split ring in contact with said drums, a flexible member attached to said friction member and adapted to be secured to said other element, a spring havingl one of its ends in fixed relation with said inst-mentioned element, means `tor connecting said spring with said friction member, said connecting means passing between said drums.v A

16. In mechanism for retarcling motion between two relatively movable elements, two drums supported by, and in fixed relation with, one of said elements, a friction shoe inthe form of a split ring in Contact with said drums, a flexible member attached to said friction member and adapted to be secured to said `other element'1 a springr having one of its ends in fixed relation with said tiret-mentioned element, means for connectinbr said spring with said friction inem* 'between two relatively movable elements,

Iwo drums suppiiirted by. and in fixed rel:i tion with. one oi ,said elements, a i'rifttioii .shoe in the 'torni ol a split ring' in etnitaet with said drunis, :i flexible member attached to .said i'rii'i'ion ineiiibei' and adapted to 'ne secured to said other element, a spring liaving-one ot1 its ends in fixed relation with .said lirstnieniioni-d element` means l'or con ueriingf said spring with said l'rietion iiieiubei'. said connecting iiieanfsA passini`r between said drains. a band around said spring, and a member for maintaining a portieri o't'siiid spring away i'roni contact with said drums 1H. in nieehanisii'i ifor retardin;- nie-tion 'in one direction lfietweeii two coaxially arranged and relatively movable cleuients, a plurality ot' relativelyY fixed drums adapled follie supporte-'l bj.' one olf .said elements. a member. havinga friction suriafe in conf tact with and supported b v each ol' said drums and adapted to be secured to said other element, and a. spring` s associated with one of said drums and saidv friction member as to tend to relatively move them in one direction.

19. In mechanism for rotar-ding motion in one direction between two coaxialiy ar'- ranged and relatively movable elements, a plurality of' relatively l'ixed drums adapted to be supported by one et said elements; a. membert having a friction surface in Contact with and supported by eael'i of said drums and adapted to he secured to said 'other element. and a spring so associated `with one' ol` said drums and said friction member as to resist. their relative' movement in one d i rei-tion'. Y

2t). in mechanism for retin-ding meti-on in one direction between two relatively mov* able eIemiuits, n member supporting at least two drinn-shaped flanges and adapted tolbe held with relation to one oi said elements, a friction member in Contact with oneA of said fianges and adapted lo be secured to said other element, a spring connecting said lirst-mentioned member and said `friction member, and means extending between said i'ianges to canse relative movement between said first-mentioned member and saidfiiction member. y

2l. In mechanism for Controlling` the. reaction of a. vehicle spring7 the combination oitwo frietionally o posedniembers, one of which is supporte( by the otlier. meaiis. for the transmission of power torotate thev supported member in one direction with relation to the-supportano' niembe. and means ior the transmission oi power. to rotate the supported member in the opposite direction with relation to the supporting member, one of said means passing through the supporting member', and said supporting member lying transversely on both sides of said lastmentioned means at that portion of said supporting member through which said means passes; y

In mechanism for controlling the reaction cfa vehicle spring, the combination of a fixed member, a member rotatable with relaion to said .tired member, and a powertransinitting member extending through the fixed 'member and secured to said rotatable member for rotating it, said rotatable memi ber contacting Lhictionally` with said fixed member transversely on beth sides of said power-transmitting member at that portion rof said fixed member through which said 1 powerftransmitting member passes.

23. ln mechanism for controlling the re i action of a vehicle spring, the combination cfa fixed mjember, a member rotatable withk relation to said fixed member,'and a povvertransmitting member extending through the fixed member and secured to said rotatable `member for rotating 1t, said rotatable member contacting'frctionally with said xed member on either side of a planewvhich is l at right angles to the'axis ol' said rotatable i .member and which passes through 'the porveretransmitting member.

24. Inmechanism for controlling the 're action ofl'b vehicle spring, the combination of two relatively movable friction members,

one of said members being substantially circular and having a slit around lsubstan tive movement between said friction niem-` member to provide for the tially its entire periphery to provide for the passage of a member operative to cause rela- 25., fin mechanism for controlling the `reaction of a vehicle spring, the combination of two relativeiy rotatable friction members and a third member operative to relatively rotate said members, one .of said friction members being provided with a slot dividing the friction surface of said member, said slot running around substantially the entire periphery of said last-mentioned passage of said third-mentibned member.`

26. In' mechanism for controlling a vehicle spring, the combinationof two relatively revolvable friction members, one be ing supported by the other, a third member Voperative to relatively revolve said members, said third member passing through and beyond the friction surface, portion of one of said friction members at a point in a plane ,substantially parallel with and lying betyveen the extreme outside edges of the friction surface portion o t said other friction member toprevent any twisting or ing of parte as a result `of the power transb .mitted by said third mentioned member.

, 27. In mechanism 'for controlling a vehielo spring, the combination of two relacrampbers, said third member passing through .and liieyondthe frictionssurface'portion of one of saidffrietion members at a point in a plane substantially parallelI with and lying between Ythe extreme outsideedges of the friction surface portions of I both of said friction members.y

28. In mechanism fory controlling a ve-l hicle spring, the combination of two rela tively rotatable lfrictionally vopposed members of which one is provided with a pair of friction surfaces, and a member secured to said last-mentioned member and operative to relatively rotate said friction members in one direction and which passes'betvveen said pair of friction surfaces.`

29. 'lnniecbanismk for controlling a vehicle spring, the combination of two relatively rotatable l frictionally contacting members and a third member secured to one of said members and operativeto relativelyrotate said members, one of ysaid friction -1ncmbcrs contacting f1i ..t1onally Wlth said mit ,the necessary relative Vrotation of'said friction members.

3l. In mechanism for controlling a vehicle spring, the combination of a stationary friction member, a rotatablevfriction inemu ber, means to rotate said last-inentioncd 'member in one direction and means to rotate said last-mentioned member in the opposite direction, the friction surface of one of said friction members being provided with a slot which permits the passagel of one of said means, said last-mentioned member lying transversely on both sides of said lOl) last-mentioned means at that'portion of said Y member through which said means passes.

32. InA mechanism for controlling the re-l action of a' spring, `vvith'decreasing resistl.ance as 'said spring reacts, the combination of two frictionally opposed and relatively. rotatable members and e` third member se-Y cured to one' of said members and operative to relatively rotate said members; one of said frictionally opposed members being provided with a slot to accommodatenecessary movement of said third member; and one of said frictionally opposed members radiallysupporting said other ietionally sniil rielioii membei-.s being provided Wit-l1 opposed member ou both sides of said slot. :r slot (o nerommodute necessary movement 33. ln mechanism for controlling the re-y zwtioii eli a spring, with decreasu'ig resist ance es said spring reacts, the combination or wo contacting and relatively rotatable friction members, :incl a third n'iemb'er secured to one or Saul members and operative to relatively rotule said members; one of oi` mid l'iiwl member; and one of said frietion members rzulinlljv supporting said other friet-ion :ziiieinlmr oo both sides of said slot. In witness whereof, I have hereunto set my hand this seventeenth day of April, A. D. 1920.

JOHN vWARRlJN lVATSON. 

